Electrical vacuum switch

Details Electrical vacuum switch Electrical vacuum switch

1996-05-24

1998-03-10

Scott, J. R.

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Vacuum

218127, 218129, H01H 3366

Patent

active

057264066

ABSTRACT:
An elongated vacuum cartridge having a cylindrical enclosure blanked off by two end-plates and housing a stationary arcing contact securedly united to one of the end-plates and a movable arcing contact mounted axially and slidingly inside the cartridge thereby providing a closed position and a separated position of the arcing contacts. An axial magnetic field in the arc formation zone is provided by a horizontal component of arcing current having an inclined trajectory with resect to the plane of the contact surfaces of the arcing contacts, the inclined trajectory being provided by angularly offset and alternating conductive and non-conductive sectors on the ends of each of the arcing contacts.

REFERENCES:
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patent: 3946179 (1976-03-01), Murano et al.
patent: 4260864 (1981-04-01), Wayland et al.
patent: 4336430 (1982-06-01), Kurosawa et al.
patent: 4504711 (1985-03-01), Zuckler
patent: 4516004 (1985-05-01), Bany et al.
patent: 4675483 (1987-06-01), Gebel et al.
patent: 4704506 (1987-11-01), Kurosawa et al.
patent: 4839481 (1989-06-01), Nash et al.
patent: 5293506 (1994-03-01), Yorita

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